Tristan has always had a fascination with understanding how, when and why animals form groups? Are groups formed because of a mutual attraction to a resource (e.g. food) or do some animals form groups because of a social attraction to one another. These questions formed the basis of his doctoral thesis on the social organisation of the lemon shark, Negaprion brevirostris and led him to want to understand more about the cognitive capacities of sharks. How quickly can sharks learn a feeding task? Can they learn it from each other? How long can they remember the task for? How do their learning capabilities match up to other animals?   




Juvenile lemon sharks were found to show consistency in two traits: 1) exploration of a novel environment and 2) how they socialize with other lemon sharks. For a review on the topic please read our book chapterFollow links above for peer-reviewed publications.